package Day03;

public class IfElseDemo {
    public static void main(String[] args) {
        double price=600;
        if (price>=500){
            price*=0.8;
        }else {
            price*=0.9;
        }
        System.out.println("最终金额："+price);

        double score=99.5;
        if (score>=0 && score<=100){
            System.out.println(score+"成绩合法");
        }else {
            System.out.println(score+"成绩不合法");
        }
    }
}
